Precision Twist Drill 6000351 Jobber Drill Bit 0.38mm Hss

Product Description

The PRECISION TWIST DRILL 6000351 is a jobber-length twist drill bit designed for general-purpose drilling in metal and hard materials. It measures 0.38 mm (0.0150 inches) in diameter with an overall length of 19 mm (0.748 inches) and a flute length of 4 mm (0.1575 inches). Manufactured from high speed steel (HSS) with a bright uncoated finish, this bit features a 118-degree standard point angle, a tapered web with web thinning, and a two-flute right-hand spiral configuration. It is sized to the h8 diameter tolerance and conforms to DIN 338 and ANSI standards. Licensed trades and machinists reach for this size when working on precision assemblies, instrumentation, and fine metalwork.

This drill bit is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. The Series 2A designation places it in a well-established general-purpose HSS jobber line. The straight-cylindrical shank (0.38 mm, 15 mm shank length) fits standard miniature drill chucks and collet-style holders used in bench drill presses, hand drills, and CNC drilling setups where small-diameter work is required. Maximum recommended drilling depth matches the flute length at 0.1575 inches.

Key Features

• 0.38 mm (0.0150 inch) diameter, h8 tolerance for dimensional accuracy
• High speed steel construction for durability across ferrous and non-ferrous workpieces
• 118-degree standard point angle with web thinning for improved penetration and reduced thrust
• Two-flute right-hand spiral, regular spiral type for efficient chip evacuation
• Bright uncoated finish — no coating buildup to affect true diameter at this micro size
• Conforms to DIN 338 specification and ANSI standards

Compatibility

Designed as a general-purpose jobber-length replacement drill bit compatible with miniature straight-cylindrical shank drill chucks and collet holders sized for 0.38 mm shanks.

Installation Notes

This bit is installed by a machinist or maintenance technician into a drill chuck or collet rated for the 0.38 mm straight-cylindrical shank — confirm chuck runout is minimal at this diameter to avoid bit deflection or breakage. Secure the workpiece firmly before drilling; at this diameter, lateral load will snap the bit. Use cutting fluid or a light lubricant when drilling stainless steel, superalloys, or titanium. Inspect the point for chipping before each use, as micro-diameter HSS bits are sensitive to regrinding damage.